Time-resolved ellipsometric detection of an anodic surface reconstruction of Pt in bromide solutions

Hyde, Peter Alden; Gottesfeld, S.

doi:10.1016/0039-6028(85)90084-6

Cited by 4 publications

(1 citation statement)

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“…The autoclave treatment of graphite at 300 °C decreases the amount of surface oxides.7 Leine et al have reported that the 02 treatment of Graphon gives rise to a surface which is abundant in the CO-desorbing oxides. 8 In the present investigation, we have studied the pretreatment of a natural graphite in a H20-02 mixture and subsequent H20 adsorption measurements.…”

Section: Introductionmentioning

confidence: 99%

Adsorption sites for water on graphite. 3. Effect of oxidation treatment of sample

Miura¹,

Morimoto²

1986

Langmuir

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The adsorption isotherms of H20 were measured on graphite samples which were partially burnt in an H20-02 mixture and then outgassed at higher temperatures. On these samples, the gas content and acidic surface functional groups were determined. The isosteric heat of adsorption of H20, qst, calculated from the second adsorption isotherms, decreases more steeply when the pretreatment temperature of graphite is raised. The qBt curve on the 1000 °C treated sample reveals a distinct minimum, at which the qst value is very small compared with the heat of liquefaction of H20. It has been found that these phenomena depend on the variety and quantity of surface oxides on graphite and that the qBt minimum appears when each amount of the H20-, C02-, and CO-desorbing oxides is extremely small.

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Section: Introductionmentioning

confidence: 99%